I don't know if Gus saved my life, per se, but one night I was walking him all over this park called Redwood Park and it wasn't super late but it's real dark in there and this dude was walking towards us a little ways up. He passed us and we kept going. Gus just wouldn't walk right he kept stopping and stepping all over me and facing the direction that we just came from. I kept trying to get him moving, he usually pulls me, not the other way around. So finally he just stopped dead, refusing to move, let out a growl staring towards this tree just behind us on the trail and without warning jerked the leash out of my hand as he jumped, or lunged in that same direction barking and snarling and when I finally regained grip of it and pulled him back, I saw the guy, who we had passed about 10 minutes before, was standing right behind that tree. He had been following us.